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Finding the Fourth Proportional to 44,430.40, 66,664.80 and 21,044.80

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Solution

The fourth proportional to 44,430.40, 66,664.80 and 21,044.80 is: 31,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,430.40 : 66,664.80 = 21,044.80 : x
  2. Step 2: Convert to fraction form
    44,430.40/66,664.80 = 21,044.80/x
  3. Step 3: Cross multiply
    44,430.40x = 66,664.80 × 21,044.80
  4. Step 4: Simplify right side
    44,430.40x = 1,402,947,383.04
  5. Step 5: Solve for x
    x = 1,402,947,383.04/44,430.40
  6. Step 6: Final answer
    x = 31,576.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.